Physics, asked by pravin93, 1 year ago

12 किग्रा का एक बम विस्फोटित होने पर 4 किग्रा और 8
किग्रा के दो द्रव्यमानों में टूटता है। 8 किग्रा द्रव्यमान वाले
टुकड़े का वेग 6 मीटर/सेकण्ड है। दूसरे टुकड़े की गतिज
ऊर्जा होगी​

Answers

Answered by vishalvaibhavnidhi
1

Answer:12 M/S IN OPPOSITE TO FIRST BULLET OF MASS 8 KG.

KINETIC ENERGY=288 JOULE

Explanation:

INITIAL MOMENTUM OF BOMB =0 AS VELOCITY IS 0 AS IT IS MASS ×VELOCITY.

NOW ,BY LAW OF CONSERVATION OF MOMENTUM, TOTAL MOMENTUM OF TWO DIFFERENTIATED BOMB WILL ALSO BE ZERO.

SO, 12×0=0(1)

NOW, 8KG×6M/S + 4KG×( X )M/S =0

48KG M/S + 4KG( X )M/S=0

(X)M/S =48÷4=12.

SO, ANS IS 12M/S BUT IN OPPOSITE TO FIRST BULLET OF MASS 8 KG.

Kinetic energy of bomb of mass 4 kg is = 1÷2 MV^2

1÷2×4KG×(12)^2

=2×144

288 KGM/S

288 JOULE.


pravin93: ans is 288
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